package com.bawei.module_open.module

import android.content.Context
import android.util.Log
import java.io.File
import java.util.concurrent.Executors

/**
 * 七牛云短视频 SDK 模拟器
 * 用于在没有实际 SDK 的情况下进行开发和测试
 */
object QiniuSDKSimulator {
    
    private const val TAG = "QiniuSDKSimulator"
    private var isInitialized = false
    private val executor = Executors.newSingleThreadExecutor()
    
    /**
     * 模拟 SDK 初始化
     */
    fun init(context: Context, licenseKey: String): Boolean {
        return try {
            Log.i(TAG, "Initializing Qiniu SDK Simulator with key: $licenseKey")
            
            // 验证密钥格式
            if (!isValidLicenseKey(licenseKey)) {
                Log.w(TAG, "Invalid license key format")
                return false
            }
            
            // 创建必要的目录
            createDirectories(context)
            
            isInitialized = true
            Log.i(TAG, "Qiniu SDK Simulator initialized successfully")
            true
        } catch (e: Exception) {
            Log.e(TAG, "Failed to initialize Qiniu SDK Simulator", e)
            false
        }
    }
    
    /**
     * 验证密钥格式
     */
    private fun isValidLicenseKey(key: String): Boolean {
        return key.isNotEmpty() && key.length >= 20
    }
    
    /**
     * 创建必要的目录
     */
    private fun createDirectories(context: Context) {
        val baseDir = context.getExternalFilesDir(null)
        val directories = arrayOf(
            "videos",
            "output", 
            "drafts",
            "watermarks",
            "stickers",
            "audio"
        )
        
        directories.forEach { dir ->
            File(baseDir, dir).mkdirs()
        }
    }
    
    /**
     * 模拟视频录制
     */
    fun startRecording(
        context: Context,
        config: VideoRecordConfig,
        callback: VideoRecordCallback
    ) {
        if (!isInitialized) {
            callback.onError("SDK not initialized")
            return
        }
        
        executor.execute {
            try {
                Log.i(TAG, "Starting simulated video recording...")
                
                // 模拟录制过程
                Thread.sleep(3000) // 模拟录制时间
                
                // 生成模拟视频文件
                val videoFile = createSimulatedVideoFile(context)
                
                Log.i(TAG, "Simulated recording completed: ${videoFile.absolutePath}")
                callback.onRecordSuccess(videoFile.absolutePath)
                
            } catch (e: Exception) {
                Log.e(TAG, "Simulated recording failed", e)
                callback.onError("Recording failed: ${e.message}")
            }
        }
    }
    
    /**
     * 创建模拟视频文件
     */
    private fun createSimulatedVideoFile(context: Context): File {
        val videosDir = File(context.getExternalFilesDir(null), "videos")
        val videoFile = File(videosDir, "simulated_video_${System.currentTimeMillis()}.mp4")
        
        // 创建一个空的视频文件（实际应用中这里会是真实的视频数据）
        videoFile.createNewFile()
        
        return videoFile
    }
    
    /**
     * 模拟视频编辑
     */
    fun startEditing(
        context: Context,
        config: VideoEditConfig,
        callback: VideoEditCallback
    ) {
        if (!isInitialized) {
            callback.onError("SDK not initialized")
            return
        }
        
        executor.execute {
            try {
                Log.i(TAG, "Starting simulated video editing...")
                
                // 模拟编辑过程
                Thread.sleep(2000) // 模拟编辑时间
                
                // 生成模拟输出文件
                val outputFile = createSimulatedOutputFile(context)
                
                Log.i(TAG, "Simulated editing completed: ${outputFile.absolutePath}")
                callback.onEditSuccess(outputFile.absolutePath)
                
            } catch (e: Exception) {
                Log.e(TAG, "Simulated editing failed", e)
                callback.onError("Editing failed: ${e.message}")
            }
        }
    }
    
    /**
     * 创建模拟输出文件
     */
    private fun createSimulatedOutputFile(context: Context): File {
        val outputDir = File(context.getExternalFilesDir(null), "output")
        val outputFile = File(outputDir, "edited_video_${System.currentTimeMillis()}.mp4")
        
        // 创建一个空的输出文件（实际应用中这里会是编辑后的视频）
        outputFile.createNewFile()
        
        return outputFile
    }
    
    /**
     * 模拟添加滤镜
     */
    fun addFilter(filterType: String, intensity: Float): Boolean {
        if (!isInitialized) return false
        
        Log.i(TAG, "Adding simulated filter: $filterType with intensity: $intensity")
        return true
    }
    
    /**
     * 模拟添加水印
     */
    fun addWatermark(watermarkPath: String, x: Float, y: Float, scale: Float): Boolean {
        if (!isInitialized) return false
        
        Log.i(TAG, "Adding simulated watermark: $watermarkPath at ($x, $y) with scale: $scale")
        return true
    }
    
    /**
     * 模拟添加音频混合
     */
    fun addAudioMix(audioPath: String, volume: Float, startTime: Long): Boolean {
        if (!isInitialized) return false
        
        Log.i(TAG, "Adding simulated audio mix: $audioPath with volume: $volume")
        return true
    }
    
    /**
     * 模拟添加文字
     */
    fun addText(
        text: String,
        x: Float,
        y: Float,
        fontSize: Float,
        color: Int,
        startTime: Long,
        duration: Long
    ): Boolean {
        if (!isInitialized) return false
        
        Log.i(TAG, "Adding simulated text: '$text' at ($x, $y)")
        return true
    }
    
    /**
     * 模拟添加MV特效
     */
    fun addMVEffect(
        effectType: String,
        intensity: Float,
        startTime: Long,
        duration: Long
    ): Boolean {
        if (!isInitialized) return false
        
        Log.i(TAG, "Adding simulated MV effect: $effectType with intensity: $intensity")
        return true
    }
    
    /**
     * 模拟添加贴图
     */
    fun addSticker(
        stickerPath: String,
        x: Float,
        y: Float,
        scale: Float,
        rotation: Float,
        startTime: Long,
        duration: Long
    ): Boolean {
        if (!isInitialized) return false
        
        Log.i(TAG, "Adding simulated sticker: $stickerPath at ($x, $y)")
        return true
    }
    
    /**
     * 模拟添加涂鸦
     */
    fun addDoodle(doodlePath: String, startTime: Long, duration: Long): Boolean {
        if (!isInitialized) return false
        
        Log.i(TAG, "Adding simulated doodle: $doodlePath")
        return true
    }
    
    /**
     * 模拟视频剪辑
     */
    fun trimVideo(startTime: Long, endTime: Long): Boolean {
        if (!isInitialized) return false
        
        Log.i(TAG, "Trimming simulated video: $startTime - $endTime")
        return true
    }
    
    /**
     * 模拟保存草稿
     */
    fun saveDraft(): Boolean {
        if (!isInitialized) return false
        
        Log.i(TAG, "Saving simulated draft")
        return true
    }
    
    /**
     * 模拟导出视频
     */
    fun exportVideo(outputPath: String, callback: VideoEditCallback) {
        if (!isInitialized) {
            callback.onError("SDK not initialized")
            return
        }
        
        executor.execute {
            try {
                Log.i(TAG, "Starting simulated video export...")
                
                // 模拟导出过程
                Thread.sleep(3000) // 模拟导出时间
                
                // 创建输出文件
                val outputFile = File(outputPath)
                outputFile.parentFile?.mkdirs()
                outputFile.createNewFile()
                
                Log.i(TAG, "Simulated export completed: ${outputFile.absolutePath}")
                callback.onEditSuccess(outputFile.absolutePath)
                
            } catch (e: Exception) {
                Log.e(TAG, "Simulated export failed", e)
                callback.onError("Export failed: ${e.message}")
            }
        }
    }
    
    /**
     * 检查是否已初始化
     */
    fun isInitialized(): Boolean {
        return isInitialized
    }
    
    /**
     * 释放资源
     */
    fun release() {
        try {
            executor.shutdown()
            isInitialized = false
            Log.i(TAG, "Qiniu SDK Simulator released")
        } catch (e: Exception) {
            Log.e(TAG, "Failed to release Qiniu SDK Simulator", e)
        }
    }
} 